Author Topic: E-mail from thesurvivalpodcast.com blocked by at least one ISP  (Read 4871 times)

Offline Mr. Bill

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E-mail from thesurvivalpodcast.com blocked by at least one ISP
« on: November 03, 2015, 11:51:27 AM »
Jack got this message today:

Quote
Subject: Mail delivery failed: returning message to sender

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

  xxxxxxxxxx@optonline.net

Your mail from 206.190.141.37 was rejected.  There are too many DNSBL-listed hosts in the /24 network with this IP. The network operator controlling the /24 must secure all compromised/spamming hosts for this block to go away automatically.

So, translating this from nerdese:

Nobody with an optonline.net e-mail address can receive any e-mail from any IP address in the range 206.190.141.1 through 206.190.141.254, because somewhere in this mound of servers there are "too many" who appear on an unidentified blacklist for unknown "compromised/spamming" evils.

This IP address range includes the server that Jack leases for thesurvivalpodcast.com, as well as umpteen other servers leased by other parties, over whom we have no control.

Archer is looking into it.  Dunno if we can fix this stupidity.

Offline never_retreat

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Re: E-mail from thesurvivalpodcast.com blocked by at least one ISP
« Reply #1 on: November 03, 2015, 08:48:17 PM »
Thats cablevision. That may affect a lot of users in the northeast if there using their isp's email.
I know they cover NY and parts of NJ that comcraptastic does not control the monopoly on.

Offline archer

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Re: E-mail from thesurvivalpodcast.com blocked by at least one ISP
« Reply #2 on: November 04, 2015, 07:50:46 AM »
Email to server hosting provider created. We'll see what they say.

Offline Mr. Bill

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Re: E-mail from thesurvivalpodcast.com blocked by at least one ISP
« Reply #3 on: November 04, 2015, 10:57:17 AM »
I have little hope for a resolution of this.

The main fault lies with the provider of e-mail service (optonline.net, in this case, but they aren't the only ones who do things like this).  A good e-mail service provider will allow the user to set up spam control to their own personal taste.  These guys are blocking not only spammy IP addresses, but all nearby IP addresses as well.  The goal is to coerce server owners into policing everything that happens on their servers.

The problem is, that can't possibly work.  In our case, Jack leases two entire servers from Company A.  Companies X, Y, and Z also lease entire servers from Company A, and operate them as shared servers, subleasing space to dozens of other companies and individuals.  Some of those subleasors send out porn spam themselves, and some are innocents whose websites have been compromised by spammers and virus-spreaders.  There is no way that Company A can police things all the way down to that level.

Add to this the fact that there are over 50 services that provide "blacklists" of spammy IP addresses -- and some of them are trying to profit by charging fees to "expedite" removal of addresses that are incorrectly blacklisted.

Anyway, this is not just a problem with Jack's e-mail, and it's not just a problem with optonline.net.  Anyone who relies on e-mail needs to be aware that messages will not always be delivered, and it may be worth shopping around for an e-mail service provider that doesn't screw up your ability to communicate.

Offline archer

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Re: E-mail from thesurvivalpodcast.com blocked by at least one ISP
« Reply #4 on: November 04, 2015, 05:33:22 PM »
blocking site says we are not blocked now, so we'll do some testing.